
//#include <iostream>
//using namespace std;
//#include <iostream>
//using namespace std;
//#include <iostream>
//using namespace std;
//#include <iostream>
//using namespace std;
//#include <iostream>
//using namespace std;
//#include <iostream>
//using namespace std;
//#include <iostream>
//using namespace std;
#include <iostream>
using namespace std;
#include <iostream>
using namespace std;
#include <iostream>
using namespace std;
#include <iostream>
using namespace std;
#include <iostream>
using namespace std;
using namespace std;

int main()
{
  cout << "hello world!" << endl;
  cout << "hello world!" << endl;
  cout << "hello world!" << endl;
  cout << "hello world!" << endl;
  cout << "hello world!" << endl;
  return 0;
}
